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PHP object injection in WordPress Hostme v2 theme

Priority MEDIUM 49CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

The AivahThemes Hostme v2 theme (hostmev2) for WordPress is affected in versions through 7.0. The theme deserializes untrusted data, which allows PHP object injection (CWE-502). An unauthenticated remote attacker can exploit this without user interaction and fully compromise confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Deserialization of Untrusted Data vulnerability in AivahThemes Hostme v2 hostmev2 allows Object Injection.This issue affects Hostme v2: from n/a through 7.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00313 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AivahThemesHostme v2up to 7.0—No fix listedCNA
  • Hostme v2 VendorAivahThemes Affected up to 7.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Hostme v2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-112848
  2. 2026-10-23 Alias added: GHSA-f5gh-pc33-83rx
  3. 2026-10-24 CISA SSVC decision points changed

References

  • TI-2021-06532 Business Hours Pro <= 5.5.0 - Unauthenticated Arbitrary File Upload to RCE CVSS 3.1CRITICAL 9.8
  • TI-2025-42593 WordPress Car Zone theme <= 3.7 - Arbitrary File Deletion vulnerability CVSS 3.1HIGH 8.6
  • TI-2025-42359 WordPress Anona theme <= 8.0 - Arbitrary File Deletion vulnerability CVSS 3.1HIGH 8.6
  • TI-2026-21756 WordPress Car Zone theme <= 3.7 - Deserialization of untrusted data vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-42361 WordPress Anona theme <= 8.0 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-42365 WordPress Hostme v2 theme <= 7.0 - Arbitrary File Deletion vulnerability CVSS 3.1HIGH 7.5
See all 8 →

Sources